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-rw-r--r--libkmid/alsaout.cc571
1 files changed, 0 insertions, 571 deletions
diff --git a/libkmid/alsaout.cc b/libkmid/alsaout.cc
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index 4c7f48f4e..000000000
--- a/libkmid/alsaout.cc
+++ /dev/null
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-/**************************************************************************
-
- alsaout.cc - class AlsaOut which represents an alsa client/port pair
- This file is part of LibKMid 0.9.5
- Copyright (C) 2000 Antonio Larrosa Jimenez
- LibKMid's homepage : http://www.arrakis.es/~rlarrosa/libkmid.html
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public License
- along with this library; see the file COPYING.LIB. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA.
-
- Send comments and bug fixes to Antonio Larrosa <[email protected]>
-
-***************************************************************************/
-#include "alsaout.h"
-#include <unistd.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include "sndcard.h"
-#include <errno.h>
-#include <string.h>
-#include <stdlib.h>
-#include <sys/param.h>
-#include "midispec.h"
-
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#ifdef HAVE_ALSA_ASOUNDLIB_H
-# include <alsa/asoundlib.h>
-#elif defined(HAVE_SYS_ASOUNDLIB_H)
-# include <sys/asoundlib.h>
-#endif
-
-#ifdef HAVE_LIBASOUND2
-# define HAVE_ALSA_SEQ 1
-# define snd_seq_flush_output(x) snd_seq_drain_output(x)
-#elif defined(HAVE_LIBASOUND)
-# define HAVE_ALSA_SEQ 1
-# include <linux/asequencer.h>
-#endif
-
-
-SEQ_USE_EXTBUF();
-
-class AlsaOut::AlsaOutPrivate
-{
-public:
-#ifdef HAVE_ALSA_SEQ
- AlsaOutPrivate(int _client, int _port, const char *cname,const char *pname)
- {
- handle=0L;
- src=tgt=0L;
- queue=0;
- tPCN=1;
- tgtclient=_client;
- tgtport=_port;
- tgtname=new char[strlen(cname)+strlen(pname)+3];
- strcpy(tgtname, cname);
- strcat(tgtname, " ");
- strcat(tgtname, pname);
- ev=new snd_seq_event_t;
- timerStarted=false;
- }
-#else
- AlsaOutPrivate(int, int, const char *,const char *)
- {
- }
-#endif
-
- ~AlsaOutPrivate()
- {
-#ifdef HAVE_ALSA_SEQ
- delete ev;
- delete tgtname;
-#endif
- }
-
-#ifdef HAVE_ALSA_SEQ
- snd_seq_t *handle;
- int client;
- int queue;
- snd_seq_addr_t *src;
- snd_seq_addr_t *tgt;
-
- snd_seq_event_t *ev;
- int tPCN;
-
- int tgtclient;
- int tgtport;
- char *tgtname;
-
- bool timerStarted;
-
-#endif
-};
-
-AlsaOut::AlsaOut(int d,int _client, int _port, const char *cname,const char *pname) : MidiOut (d)
-{
- di = new AlsaOutPrivate( _client, _port, cname, pname);
- seqfd = 0;
- devicetype=KMID_ALSA;
- device= d;
-
- volumepercentage=100;
-#ifdef HAVE_ALSA_SEQ
-// printf("%d %d %d (%s)\n",device, di->tgtclient, di->tgtport, di->tgtname);
-#endif
-
- _ok=1;
-}
-
-AlsaOut::~AlsaOut()
-{
- closeDev();
- delete di;
-}
-
-void AlsaOut::openDev (int)
-{
-#ifndef HAVE_ALSA_SEQ
- return;
-#else
- _ok=1;
-#ifdef HAVE_LIBASOUND2
- if (snd_seq_open(&di->handle, "hw", SND_SEQ_OPEN_DUPLEX, 0) < 0)
- fprintf(stderr, "Couldn't open sequencer: %s", snd_strerror(errno));
-#else
- if (snd_seq_open(&di->handle, SND_SEQ_OPEN) < 0)
- fprintf(stderr, "Couldn't open sequencer: %s", snd_strerror(errno));
-#endif
-
- di->queue = snd_seq_alloc_queue(di->handle);
- if (di->queue < 0) {fprintf(stderr, "Couldn't allocate queue"); return; };
- di->client = snd_seq_client_id(di->handle);
- if (di->client < 0) {fprintf(stderr, "Couldn't get client id"); return; };
- di->tgt = new snd_seq_addr_t;
- di->tgt->client=di->tgtclient;
- di->tgt->port=di->tgtport;
-
- di->src = new snd_seq_addr_t;
- di->src->client = di->client;
- int port = snd_seq_create_simple_port(di->handle, NULL,
- SND_SEQ_PORT_CAP_WRITE | SND_SEQ_PORT_CAP_SUBS_WRITE
- | SND_SEQ_PORT_CAP_READ, SND_SEQ_PORT_TYPE_MIDI_GENERIC);
- if ( port < 0 )
- {
- delete di->src;
- delete di->tgt;
- di->src=0;
- di->tgt=0;
- _ok=0;
- time=0;
- snd_seq_free_queue(di->handle, di->queue);
- snd_seq_close(di->handle);
- fprintf(stderr, "Cannot connect to %d:%d\n",di->tgtclient,di->tgtport);
- return;
- }
- di->src->port = port;
-
-
- int r=snd_seq_connect_to(di->handle, di->src->port, di->tgt->client, di->tgt->port);
- if (r < 0) { _ok=0; fprintf(stderr, "Cannot connect to %d:%d\n",di->tgtclient,di->tgtport); }
- time=0;
-#endif
-}
-
-void AlsaOut::closeDev (void)
-{
- if (!ok()) return;
-#ifdef HAVE_ALSA_SEQ
- if (di->handle)
- {
- if (di->src)
- {
- snd_seq_delete_simple_port(di->handle,di->src->port);
- delete di->src;
- di->src=0;
- }
- if (di->tgt)
- {
- delete di->tgt;
- di->tgt=0;
- }
- if (di->queue)
- {
- snd_seq_free_queue(di->handle, di->queue);
- snd_seq_close(di->handle);
- }
- di->handle=0;
- }
-
-#endif
-}
-
-void AlsaOut::initDev (void)
-{
-#ifdef HAVE_ALSA_SEQ
- int chn;
- if (!ok()) return;
- uchar gm_reset[5]={0x7e, 0x7f, 0x09, 0x01, 0xf7};
- sysex(gm_reset, sizeof(gm_reset));
- for (chn=0;chn<16;chn++)
- {
- chnmute[chn]=0;
- if (chn!=9) chnPatchChange(chn,0);
- chnPressure(chn,64);
- chnPitchBender(chn, 0x00, 0x40);
- chnController(chn, CTL_MAIN_VOLUME,110*volumepercentage);
- chnController(chn, CTL_EXT_EFF_DEPTH, 0);
- chnController(chn, CTL_CHORUS_DEPTH, 0);
- chnController(chn, 0x4a, 127);
- }
-#endif
-}
-
-#ifdef HAVE_ALSA_SEQ
-void AlsaOut::eventInit(snd_seq_event_t *ev)
-{
- snd_seq_ev_clear(ev);
- snd_seq_real_time_t tmp;
- tmp.tv_sec=(time)/1000;
- tmp.tv_nsec=(time%1000)*1000000;
-// printf("time : %d %d %d\n",(int)time,(int)tmp.tv_sec, (int)tmp.tv_nsec);
- if (!di->src) { fprintf(stderr,"AlsaOut::eventInit : no source\n"); return; }
- ev->source = *di->src;
- if (!di->tgt) { fprintf(stderr,"AlsaOut::eventInit : no target\n"); return; }
- ev->dest = *di->tgt;
-
- snd_seq_ev_schedule_real(ev, di->queue, 0, &tmp);
-}
-
-void AlsaOut::eventSend(snd_seq_event_t *ev)
-{
- /*int err = */ snd_seq_event_output(di->handle, ev);
-/* if (err < 0)
- return;
-*/
-//#ifndef SND_SEQ_IOCTL_GET_CLIENT_POOL
- /*
- * If this is not defined then block mode writes will not be
- * working correctly. Therefore loop until all events are flushed
- * out.
- */
-/* err = 0;
- do {
- err = snd_seq_flush_output(di->handle);
- if (err > 0)
- usleep(2000);
- } while (err > 0);
-
-#endif
-
- return ;
-*/
-}
-
-void AlsaOut::timerEventSend(int type)
-{
- snd_seq_event_t ev;
-
- ev.queue = di->queue;
- ev.dest.client = SND_SEQ_CLIENT_SYSTEM;
- ev.dest.port = SND_SEQ_PORT_SYSTEM_TIMER;
-
- ev.data.queue.queue = di->queue;
-
- ev.flags = SND_SEQ_TIME_STAMP_REAL | SND_SEQ_TIME_MODE_REL;
- ev.time.time.tv_sec = 0;
- ev.time.time.tv_nsec = 0;
-
- ev.type = type;
-
- snd_seq_event_output(di->handle, &ev);
- snd_seq_flush_output(di->handle);
-}
-
-#endif // HAVE_ALSA_SEQ
-
-#ifndef HAVE_ALSA_SEQ
-void AlsaOut::noteOn (uchar , uchar , uchar )
-{
-#else
-void AlsaOut::noteOn (uchar chn, uchar note, uchar vel)
-{
- if (vel==0)
- {
- noteOff(chn,note,vel);
- }
- else
- {
- eventInit(di->ev);
- snd_seq_ev_set_noteon(di->ev,map->channel(chn), map->key(chn,chnpatch[chn],note), vel);
- eventSend(di->ev);
- }
-#endif
-#ifdef MIDIOUTDEBUG
- printfdebug("Note ON >\t chn : %d\tnote : %d\tvel: %d\n",chn,note,vel);
-#endif
-}
-
-#ifndef HAVE_ALSA_SEQ
-void AlsaOut::noteOff (uchar , uchar , uchar )
-{
-#else
-void AlsaOut::noteOff (uchar chn, uchar note, uchar vel)
-{
- eventInit(di->ev);
- snd_seq_ev_set_noteoff(di->ev,map->channel(chn), map->key(chn,chnpatch[chn],note), vel);
- eventSend(di->ev);
-#endif
-#ifdef MIDIOUTDEBUG
- printfdebug("Note OFF >\t chn : %d\tnote : %d\tvel: %d\n",chn,note,vel);
-#endif
-}
-
-#ifndef HAVE_ALSA_SEQ
-void AlsaOut::keyPressure (uchar , uchar , uchar )
-{
-#else
-void AlsaOut::keyPressure (uchar chn, uchar note, uchar vel)
-{
- eventInit(di->ev);
- snd_seq_ev_set_keypress(di->ev,map->channel(chn), map->key(chn,chnpatch[chn],note), vel);
- eventSend(di->ev);
-#endif
-}
-
-#ifndef HAVE_ALSA_SEQ
-void AlsaOut::chnPatchChange (uchar , uchar )
-{
-#else
-void AlsaOut::chnPatchChange (uchar chn, uchar patch)
-{
-#ifdef MIDIOUTDEBUG
- printfdebug("PATCHCHANGE [%d->%d] %d -> %d\n",
- chn,map->channel(chn),patch,map->patch(chn,patch));
-#endif
- eventInit(di->ev);
- snd_seq_ev_set_pgmchange(di->ev,map->channel(chn), map->patch(chn,patch));
- eventSend(di->ev);
- chnpatch[chn]=patch;
-#endif
-}
-
-#ifndef HAVE_ALSA_SEQ
-void AlsaOut::chnPressure (uchar , uchar )
-{
-#else
-void AlsaOut::chnPressure (uchar chn, uchar vel)
-{
- eventInit(di->ev);
- snd_seq_ev_set_chanpress(di->ev,map->channel(chn), vel);
- eventSend(di->ev);
-
- chnpressure[chn]=vel;
-#endif
-}
-
-#ifndef HAVE_ALSA_SEQ
-void AlsaOut::chnPitchBender(uchar ,uchar , uchar )
-{
-#else
-void AlsaOut::chnPitchBender(uchar chn,uchar lsb, uchar msb)
-{
- map->pitchBender(chn,lsb,msb);
- chnbender[chn]=((short)msb<<7) | (lsb & 0x7F);
- chnbender[chn]=chnbender[chn]-0x2000;
-
- eventInit(di->ev);
- snd_seq_ev_set_pitchbend(di->ev,map->channel(chn), chnbender[chn]);
- eventSend(di->ev);
-#endif
-}
-
-#ifndef HAVE_ALSA_SEQ
-void AlsaOut::chnController (uchar , uchar , uchar )
-{
-#else
-void AlsaOut::chnController (uchar chn, uchar ctl, uchar v)
-{
- map->controller(chn,ctl,v);
- if ((ctl==11)||(ctl==7))
- {
- v=(v*volumepercentage)/100;
- if (v>127) v=127;
- }
-
- eventInit(di->ev);
- snd_seq_ev_set_controller(di->ev,map->channel(chn), ctl, v);
- eventSend(di->ev);
-
- chncontroller[chn][ctl]=v;
-#endif
-}
-
-#ifndef HAVE_ALSA_SEQ
-void AlsaOut::sysex(uchar *, ulong )
-{
-#else
-void AlsaOut::sysex(uchar *data, ulong size)
-{
- eventInit(di->ev);
- snd_seq_ev_set_sysex(di->ev, size, data);
- eventSend(di->ev);
-#endif
-
-#ifdef MIDIOUTDEBUG
- printfdebug("sysex\n");
-#endif
-}
-
-#ifndef HAVE_ALSA_SEQ
-void AlsaOut::channelSilence (uchar )
-{
-#else
-void AlsaOut::channelSilence (uchar chn)
-{
- uchar i;
- for ( i=0; i<127; i++)
- {
- noteOff(chn,i,0);
- }
-#endif
-}
-
-#ifndef HAVE_ALSA_SEQ
-void AlsaOut::channelMute(uchar , int )
-{
-#else
-void AlsaOut::channelMute(uchar chn, int a)
-{
- if (a==1)
- {
- chnmute[chn]=a;
- channelSilence(chn);
- }
- else if (a==0)
- {
- chnmute[chn]=a;
- }
- /* else ignore the call to this procedure */
-#endif
-}
-
-void AlsaOut::seqbuf_dump (void)
-{
- printf("You shouldn't be here.\n");
-}
-
-void AlsaOut::seqbuf_clean(void)
-{
- printf("You shouldn't be here neither.\n");
-}
-
-void AlsaOut::wait(double ticks)
-{
-// SEQ_WAIT_TIME(((int)(ticks/convertrate)));
- time=static_cast<long int>(ticks);
-
-#ifdef MIDIOUTDEBUG
- printfdebug("Wait >\t ticks: %g\n",ticks);
-#endif
-}
-
-#ifndef HAVE_ALSA_SEQ
-void AlsaOut::tmrSetTempo(int )
-{
-#else
-void AlsaOut::tmrSetTempo(int v)
-{
- eventInit(di->ev);
- di->ev->type = SND_SEQ_EVENT_TEMPO;
- snd_seq_ev_set_direct(di->ev);
- di->ev->data.queue.queue = di->queue;
- di->ev->data.queue.param.value = v;
- di->ev->dest.client = SND_SEQ_CLIENT_SYSTEM;
- di->ev->dest.port = SND_SEQ_PORT_SYSTEM_TIMER;
- snd_seq_event_output_direct(di->handle, di->ev);
-#ifdef MIDIOUTDEBUG
- printfdebug("SETTEMPO >\t tempo: %d\n",v);
-#endif
-#endif
-}
-
-#ifndef HAVE_ALSA_SEQ
-void AlsaOut::sync(int )
-{
-#else
-void AlsaOut::sync(int i)
-{
- if (i==1)
- {
- snd_seq_flush_output(di->handle);
- }
-
- if (di->timerStarted && di->src)
- {
- eventInit(di->ev);
- di->ev->dest = *di->src;
- eventSend(di->ev);
- snd_seq_flush_output(di->handle);
- snd_seq_event_input(di->handle,&di->ev);
- }
-
-#endif
-}
-
-#ifndef HAVE_ALSA_SEQ
-void AlsaOut::tmrStart(int )
-{
-#else
-void AlsaOut::tmrStart(int tpcn)
-{
- int ret;
- di->timerStarted=true;
- di->tPCN=tpcn;
-
-#ifdef HAVE_LIBASOUND2
- snd_seq_queue_tempo_t *queuetempo;
- snd_seq_queue_tempo_alloca(&queuetempo);
- snd_seq_queue_tempo_set_ppq(queuetempo, tpcn);
- snd_seq_queue_tempo_set_tempo(queuetempo, 60*1000000/120);
- ret = snd_seq_set_queue_tempo(di->handle, di->queue, queuetempo);
-#else
- snd_seq_queue_tempo_t queuetempo;
- memset(&queuetempo, 0, sizeof(queuetempo));
- queuetempo.queue = di->queue;
- queuetempo.ppq = tpcn;
- queuetempo.tempo = 60*1000000/120;
- ret = snd_seq_set_queue_tempo(di->handle, di->queue, &queuetempo);
-#endif
-
- timerEventSend(SND_SEQ_EVENT_START);
- snd_seq_start_queue(di->handle,di->queue,NULL);
-#endif
-}
-
-void AlsaOut::tmrStop(void)
-{
-#ifdef HAVE_ALSA_SEQ
- di->timerStarted=false;
- timerEventSend(SND_SEQ_EVENT_STOP);
-#endif
-}
-
-void AlsaOut::tmrContinue(void)
-{
-}
-
-const char * AlsaOut::deviceName(void) const
-{
-#ifdef HAVE_ALSA_SEQ
- return di->tgtname;
-#else
- return 0L;
-#endif
-}
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